نتایج جستجو برای: rk4 method
تعداد نتایج: 1630094 فیلتر نتایج به سال:
Current modeling is presented to simulate the impression of magnetic forces and radiation cooling sheet. The testing fluid mixture copper oxide H2O due low fraction, homogeneous model was imposed. Terms were involved in energy momentum equations. After converting partial equation final forms, RK4 implemented find solution. Outputs illustrated view profiles. Impose Lorentz force can decline f in...
in solvo-hydrothermal method, xrd pattern was indicated presence of intermediate of ammonium octatmolybdate and ammonium tetramolybdate, which were changed to stble phase of ?-moo3 annealing. sem images were indicated nanoparticle with semispheical morphology and tem image was demonstrated nanoparticles with a diameter size of 25nm. also in impregnate method. the xrd pattern was shown high crys...
in this work, a novel and fast method for direct analysis of volatile compounds (davc) of medicinal plants has been developed by holding a filament from different parts of a plant in the gc injection port. the extraction and analysis of volatile components of a small amount of plant were carried out in one-step without any sample preparation. after optimization of temperature, extraction time a...
in iran we already use laminate tubes only in cosmetics industry. laminate tube manufacturers via using the most modern technology of the world, faced with the laminate tube market being saturated in cosmetics industry for packaging the cosmetic creams and toothpaste. but considering the great food market and therefore laminate tube features such as beautiful packaging, ease of use for the fina...
دیوارهای خاک مسلّح ، دیوارهای مقرون به صرفه ای هستند که امروزه کاربرد زیادی در پروژه های عمرانی دارند. پایداری دیوارهای خاک مسلّح از دو جنبه پایداری خارجی و پایداری درونی مدّ نظر است. پایداری درونی دیوار شامل پایداری در برابر گسیختگی و بیرون کشیدگی مسلّح کننده ها می باشد. جهت بررسی پایداری درونی دیوار بایستی نیروی مسلّح کننده ها محاسبه شود. برای محاسبه این نیروها روش های مختلفی ارائه شده که در این ت...
the purpose of this study was the relationship between problem – solvi ability with fdi cognitive style of students.the research method was correlation method. for data analysis pearson test was used. statistical society in this research was all the students of alligoodarz city in 1391-92 year.to sampling of statiscal population was used sampling multi-stage random the size of sample selected 2...
a significant problem in multicarrier communication systems is the necessity to reduce the value of papr (peak-to-average power ratio) of transmitting signal. in this thesis we study the effect of the system parameters such as coding and modulation types on papr and ultimate ber in a mc-cdma system. in this study we consider fading channel as well as the nonlinearity of transmitter’s amplifier ...
Aceh Province is known by the central production of not only Gayo coffee but also Robusta coffee. They are produced on southwest coast and east for cocoa commodities. Meanwhile, there have been changes in lifestyles, especially millennial generation, including at Province. To reach opportunity it very urgent to realise a new product development based beverages. Focuses this research were obtain...
The current investigation aims to analyze the nanofluid flow between two infinite rotating horizontal channels. lower plate is porous and stretchable. impact of physical parameters such as Hall current, thermal characteristics, heat source/sink, chemical reaction on velocity, temperature, concentration profiles are discussed through graphs. governing equations transformed ordinary differential ...
The laminar movement in an expanding and contracting permeable pipe or surface has recently attracted the attention of many scholars owing to its application engineering biological processes. objective current study is examine influence chemical processes on magnetized nanofluid flow over extending shrinking pipes with a heat reservoir. equations are renovated into first ODEs by introducing new...
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